QUESTION 3
In a certain region, the mean annual salary for plumbers is $51,000. Let x be a random variable that represents a plumber's salary. Assume the standard deviation is $1300. If a random sample of 100 plumbers is selected, what is the probability that the sample mean is greater than $51,300?
A. |
0.32 |
|
B. |
0.03 |
|
C. |
0.41 |
|
D. |
0.01 |
Get Answers For Free
Most questions answered within 1 hours.